Well now in this time is no longer used old monsters for many cards that have come out as:

Blackwing

Lightsworn

Gladiator Beast

Infernity

Although these decks are very good , I also think we should use old lcards as you like: "The Familiar Knight," which its effect is: "If this card is destroyed in battle and sent to the graveyard, both players can special summon a level 4 monster hand to the field."

The effect of the knight only brings monsters of level 4 of the handThis card must be destroyed in battle (not for effects) and must be sent to the graveyard (the effect does not activate if sent out of play)

Well as the name says is a "Knight", has a sword and shield, his dress is a silver armor like the sword and shield, his hair is brown, his coat is red.

Uses:

Well this card has good effects on either deck looking monsters and level 4 of the hand when it is destroyed in battle and sent to the Graveyard, this card is use in the following decks:

Blackwing: You can special summon a Bora or a Shura

Lightsworn: You can special summon a Wulf or Ehren or Jain

Dragon: You can special summon a Wyvern or Rare Metal Dragon

Gladiator Beast: So you can special summon a Lakari or Bestiari, etc ...

Zombie: You can special summon a Mezuki or Zombie Master

Dark: You can special summon a grepher or Armageddon Knight or Tomato

Anti Meta: You can special summon a Rai-oh! or Alius

Cloudian: Special Summon a cloud and is not destroyed in battle

Six Samurai: Special Summon Irou or Zanji

Strategies and game play:

It is obvious that his strategy is to go a special summon especially on a monster to the field level 4 (the bad thing is that your opponent can also do this) but its effect is to protect life.

Your type of game is to protect life and protect the special convocation

Combos with other cards:

Familiar Knight + Mystic Tomato + Mystic Tomato =D.A.D.

Well one good thing about this card is its attribute "Dark" which is good for DAD, when the knight is destroyed in battle, casualties on the field to the tomato in your hand, and if your opponent attacks special summon Tomato Tomato's deck to another the field is destroyed and if you have three Darks and Special Summon DAD

Familiar Knight + The Dark Door

If your opponent special summon a monster with level 4 and you have nothing to summon with Dark Door can only attack once per turn.

Familiar Knight + Volcanic Rocket

When the knight is destroyed in battle and sent to the graveyard, summon the rocket and its effect lets you bring a deck of Blaze Accelerator hand.

Familiar Knight + Wulf, Lightsworn Beast

When the knight is destroyed in battle special summon Wulf from your hand.

Familiar Knight + Honest + Honest

When the knight is destroyed in battle Honest and if you bring your opponent attacks you with the monster summon and a decent strip of your hand = great damage.

Frankly, I never thought "Familiar Knight" was a good card. However, I appreciate you're encouraging players to consider possibilities between older and newer cards. I can see how "Familiar Knight" would be good in a Deck that maintains a flow of Level 4 Monsters. (It's too bad Gadgets' effects only trigger when they're Normal Summoned.)

Frankly, I never thought "Familiar Knight" was a good card. However, I appreciate you're encouraging players to consider possibilities between older and newer cards. I can see how "Familiar Knight" would be good in a Deck that maintains a flow of Level 4 Monsters. (It's too bad Gadgets' effects only trigger when they're Normal Summoned.)

Actually, their effects can be used when they are either Normal or Special Summoned.